package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?s)<a[^>]*>.*?</a\s*>(*SKIP)(*FAIL)|\borlistat\b`)
var str = []byte(`
<li><a href="/Dimagrire/Farmaci/orlistat.html"><strong>Orlistat</strong></a>, inibitore delle lipasi gastroenteriche, in grado di ridurre orlistat sensibilmente l'assorbimento intestinale dei grassi alimentari, tagliando così il potere calorico della dieta. <br />
`)
var substitution = []byte("<a href="ddd">orlistat</a>")
var count = 1 // negative counter is equivalent to global case (replace all)
str = re.ReplaceAllStringFunc(str, func(s string) string {
if count == 0 {
return s
}
count -= 1
return re.ReplaceAllString(s, substitution)
})
fmt.Println(string(str))
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/